Cited by 116Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsFunctional Brain Connectivity Studies

Involvement of the precuneus/posterior cingulate cortex is significant for the development of Alzheimer’s disease: a pet (THK5351, PiB) and resting fMRI study.

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Yokoi, Takamasa, Watanabe, Hirohisa, Yamaguchi, Hiroshi, Bagarinao, Epifanio, Masuda, Michihito, Imai, Kazunori, Ogura, Aya, Ohdake, Reiko +13 more·2018·Frontiers in Aging Neuroscience

Abstract

Background: Imaging studies in Alzheimer’s disease have yet to answer the underlying questions concerning the relationship among tau retention, neuroinflammation, network disruption, and cognitive decline. We compared the spatial retention patterns of 18F-THK5351 and resting state network disruption in patients with early Alzheimer’s disease and healthy controls. Methods: We enrolled 23 11C-Pittsburgh compound B (PiB)-positive patients with early Alzheimer’s disease and 24 11C-PiB-negative participants as healthy controls. All participants underwent resting state functional MRI and 18F-THK5351 PET scans. We used scaled subprofile modeling/principal component analysis (SSM/PCA) to reduce the complexity of multivariate data and to identify patterns that exhibited the largest statistical effects (variances) in THK5351 concentration in Alzheimer’s disease and healthy controls. Findings: SSM/PCA identified a significant spatial THK5351 pattern composed by mainly three clusters including precuneus/posterior cingulate cortex, right and left dorsolateral prefrontal cortex which accounted for 23.6% of the total subject voxel variance of the data and had 82.6% sensitivity and 79.1% specificity in discriminating Alzheimer’s disease from healthy controls. There was a significant relationship between the intensity of the 18F-THK5351 covariation pattern and cognitive scores in Alzheimer’s disease. The spatial patterns of 18F-THK5351 uptake showed significant similarity with intrinsic functional connectivity, especially in the precuneus/posterior cingulate cortex network. Seed-based connectivity analysis from the precuneus/posterior cingulate cortex showed significant decrease in connectivity over widespread brain regions in Alzheimer’s disease patients. An evaluation of an autopsied Alzheimer’s disease patient with Braak V showed that 18F-THK5351 retention corresponded to tau deposition, monoamine oxidase-B and astrogliosis in the precuneus/posterior cingulate cortex. Interpretation: We identified an Alzheimer’s disease-specific spatial pattern of 18F-THK5351 retention in the precuneus/posterior cingulate cortex, an important connectivity hub region in the brain. Disruption of the functional connections of this important network hub may play an important role in developing dementia in Alzheimer’s disease.

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Crossref · 10.3389/fnagi.2018.00304

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  • In a previous THK study with early AD patients, the precuneus was the most prominent AD-specific THK retention area, and the spatial pattern of THK uptake showed significant similarity with functional connectivity.

    “In a previous THK study with early AD patients, the precuneus was the most prominent AD-specific THK retention area, and the spatial pattern of THK uptake showed significant similarity with functional connectivity (Yokoi et al., 2018).”

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Authors
Yokoi, T., Watanabe, H., Yamaguchi, H., Bagarinao, E., Masuda, M., Imai, K., Ogura, A., Ohdake, R., Kawabata, K., Hara, K., Riku, Y., Ishigaki, S., Katsuno, M., Miyao, S., Kato, K., Naganawa, S., Harada, R., Okamura, N., Yanai, K., Yoshida, M., & Sobue, G.
Affiliations
  • Nagoya University (JP)
  • Brain & Mind Research Center, Nagoya University (JP)
  • Meitetsu Hospital (JP)
  • Tohoku University (JP)
  • Tohoku Medical and Pharmaceutical University (JP)
  • Aichi Medical University (JP)
Corresponding author
Sobue, Gen
Venue
Frontiers in Aging Neuroscience
Published
2018-10-05
Volume
10
Pages
304-304
ISSN
1663-4365 (ISSN-L)
OpenAlex
W2895455599
Cited by
116
References
73
Citations by year
2026: 5 · 2025: 20 · 2024: 18 · 2023: 14 · 2022: 24 · 2021: 15 · 2020: 8 · 2019: 10 · 2018: 1
FWCI
6.69
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Aging Neuroscience (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion, cc-by-nc-nd)
  • Nagoya University Repository (NAGOYA Repository) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Ministry of Education, Culture, Sports, Science and Technology (26117002, 80569781)
  • Ministry of Health, Labour and Welfare
  • Japan Society for the Promotion of Science (18K07367, 18H02771, 26117002, 26117001, 26117004)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
Keywords
Alzheimer's disease, precuneus, posterior cingulate cortex, 18F-THK5351, tau PET, [11C]PIB, resting-state functional connectivity, intrinsic functional connectivity, seed-based functional connectivity, early Alzheimer's disease, tau deposition, dorsolateral prefrontal cortex, Braak staging, astrocyte activation

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